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R. WHAR'I'ON.

E TEEEAD GUIDE AND TENSION DEVICE. E No. 272,812. Patented'Feb. 20,1883.

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UTTED STATES PATENT @Trice I RICHARD WHARTON, OF PHILADELPHIA,PENNSYLVANIA, ASSIGNOR OF ONE-HALF TO WILLIAM VHITAKER, OF SAME PLACE.

THREAD GUIDE AND TENSION DEVICE.

SPECIFICATION forming` part of Letters Patent No. 272,812, datedFebruary 20, 1883.

' Application filed July 3, i882.l (No model.)

- have invented a new and useful Improvement in Thread Guide and TensionDevices, of which the following is hereby declared by me to bea full,clear, and exact description.

The object of my invention is to provide accurately operating meanswhereby thread or yarn can be compactly and smoothly wound or wrappedupon bobbins, and be moreover so wrapped as to assume a properpredetermined exterior contour.

In the winding of thread upon bobbins it is the practice to affix thebobbin to a spindle or kindred device, which will impart to it a rapidrotary motion, and to feed the thread to said rotating bobbin from a.spool by means of thread-guides or the like, through which the thread ispassed in its path from the spool to the bobbin, said thread-guidesbeing mounted upon a reciprocating traverse bar, by which they arereciprocated lengthwise of the bob# bin, with the result that an evendistribution ofthe thread from end to end of the bobbin is secured.

As will be readily understood, in the winding of bobbins, when it isdesired to supply more thread at one portion than at another, it is ofadvantage to have the thread regulated by some tension which will enableits rapid or slow feed without occasioning it to be either too looselyor too tightly wrapped upon said portions ofthe bobbin.

In the accompanying drawings, which represent a thread guide and tensiondevice conveniently embodying my invention, Figure 1 is a View of thesame infront elevation, showing also a portionof a bobbin. Fig.2is aview of the samein side elevation,slio\ving both the bobbin and feed-spool. Fig. 3 is'a vertical longitudinal central sectional elevation ofmy thread guide and tension device. Fig. 4 is an end elevation of thesame, a portion of one of the barrel-heads being broken away to 'exhibitone of the brake-springs. Fig. 5 is an end elevational view looking fromthe inside ot' one ol' the barrel-heads rel'erred to. Figli is a centralvertical sectional detail of a mrd ed construction, hereinafter fullyexplained.

In all of the above 'figures similar letters of reference indicatecorresponding parts, and said figures represent a preferred form of aconvenient embodiment of the invention.

In the drawings, A is a traverse bar, supposed .to be constructed and tooperate in the usual manner. lt is but partially shown.

B is a bracket or standard Aerected from the traverse-bar and adapted totixedly retain and support the shaft of my thread guide and tensiondevice.

C is the central sha-ft, xedly connected to the bracket referred to, andbranching` oft horizontally therefrom. The central portion of the shaft,to which the letter O is applied. and which is well exhibited in Figs. 3and 6, is round, while on either side of said rounded portion the shaftis squared, as at c, or otherwise formed of irregular contour to fit it,to receive and hold in such position that they cannot rotate the fixedinclosing-barrels D. lhese barrels are well made when of the formrepresented in the sectional view of Fig. -that is to say, they arecap-like devices adapted to inclose and contain certain of the workingparts of the device. They are each cylindrii'orm in exterior contour,and are internallydivided into two cavities-an inner cavity, d. and anouter cavity, (ZX-which are divided from each other by a-diaphragm, E,through the medium of which the barrels are secured to the-squared endsc of the shaft.

F are what l. term tension-caps,77 a convenient forrn of which isrepresented in Figs. 1 and 3. They are of similar construction andoppnsiiely placed, so as respectively to cover and inclose the open endof the larger cavities of the barrels. Centrally they are providedclosing-barrels likewise mounted thereupon, the open outer faces of thetension-caps overlap the open inner faces of the iuclosing-barrels, andthe sleeve, shaft, and other devices hereinafter described are not onlycompletely inclosedand hidden from view, but likewise protected fromdirt, filaments ofyarn, and the like.

Erected upon and fixedly connected with the tubular sleeve G at both ofits end-s are spring-cups,77 as I term them, or cyln-dricinclosing-cups, as theyreally are, which partially inclose spiralsprings I, which surround the tubular sleeve, and are hereinafter termedthe cap-springs.77 One end of each ot' these springs is connected to theinterior face ot'one ot thetension-caps, and the other to the iuteriorof the spring-cups, or it may be to the tubular sleeve itself'. Thespring-cups form in effect a part of the tubular sleeve, theconstruction represented being one ot' mechanical convenience; and itwill be obvious to any mechanic that the operation ofthe oap-springswhich is to retain the tension-caps tightly together, and yet enabletheir movement lengthwise apart upon the tubular sleeve, would beequally well subserved by connectingthese springs, upon the one hand, tothe caps, and on the other hand to the sleeve itself', or to any collaror other member, not being the specific spring-cup recited, erected fromand connected to said sleeve.

The connection between the cups and the sleeve may he effected by keys,set-screws, or other convenient devices. In the drawings the connectionis represented as effected by the jamming of the cups upon the sleeve,which is a convenient method.

From the foregoing description it will be readily understood thatwhereas the central shaft and the inclosing-barrels are fixed, thetubular sleeve, spring-cups, and tension-'caps are free to rotatetogether with respect to and about the central shal't, while thetension-caps are likewise adapted, in addition to their motion ofrotation, for endwise movement upon the sleeve.

J, Fig. 2, is a spool oft' from which the yarn is to be unwound andwound upon the bobbin K. The bobbin is actuated from any suitablespindle, L, or actuating-shaft. The yarn is carried from the spoolbetween the tensioncaps to the bobbin. Motion being imparted to thebobbin and to the traverse-bar, it will caps upon the thread, a veryperfect control exterior to said caps can beobtained. This means is abrake, M, consisting ot' a cross-bar, to which the letter M is applied,provided with two arms, m, as shown in Figs. l and 2, the said arinsbeing pivoted at N to the respective barrels, which are preferablyslotted through at O for the litting ofthe brake when the latter is madeot` the form and attached in the manner represented in the drawings.

In the outer cavities, d", of the barrels are applied spiralband-springs S, called herein the brake-springs, which are rigidlyconnected at' their inner extremities to the barrel-heads P, whichlatter are adjnstably iitted to the ends ofthe barrels, so as to tightlyinclose their outercavities, while the outer extremities of the springsare connected--as,t'orinstance, by means of the pins Q--to the said armsof the brake. These brake-springs, being coiled in the outer cavities,in their passage out to the brake, pass through openings R in thebarrels. The inner extremities of these brake-springs being attached tothebarrel-heads, the springs are adapted to be tightened up by therotation of the heads and the tightening ot1 the latter against theouter face of the barrels by means ot' the lock-nuts I, which arethreaded upon the shaft. By this means a greater or less tension can begiven to these springs, and consequently to the brake, which isdependent upon them for its tension.

The brake being, both as to its controlling springs and as to itspivots, connected with the stationary barrels and independent of thetension-caps, it is obvious that it can be employed as a separatetension device to co-opcrate. with the tension-caps in their action uponthe yarn.

The yarn, after passingthrough between the tension-caps, passes over andagainst the brake in the'A manner represented in Figs. l and 2, andaccording to the set of the brake-springsthat is, whether they betightly or not tightly wound-will be the consequent tension which thebrake will exert upon the yarn.

The combined control ofthe tension-caps and brake is such as to effect avery nice and exact control ofy the thread, and enable its wrapping uponthe bobbin withoutirregularity or looseness at portions ot' the coil.

The device is of course applicable where, in place ot' being spooled,the yarn is in hanks.

It is obvious that the barrels could be dispensed with and the deviceremain operative; yet, apart from the convenience of the construction,the part which the barrels play in exclnding dirt and dust from theworking parts and in protecting the yarn from oil, should oil beapplied, is an important one.

Other devices than the brake-springs may' be applied for the control ofthe brake and other substitutes for the cap-springs. Thus, forinstance,in Fig. 6, I have represented as a spring a tubular rubber thimble, U,formed with collarsI7 and Itted around the sleeve, which holds togetherthe tension-caps, and yet IOO IOS

IIO

ISO

permits of their separation under stress of the thread.

Various minor mechanical changes in the adjustment and relationship ofthe parts can be made, which will not vary the result had in vlew.

Having thus described my invention, I'claim as au improvement inbobbin-winders- 1. The combination of a fixed shaft supported from andreciprocated by a traversebar, a traversebar, two tension-caps adaptedboth to rotate and to move endwise with respect to said shaft, and afriction-brake connected as to its fnlcrum with said shaft and free tomove from and toward the tensioncaps, substantially as described.

2. In combination with a fixed shaft connected with and adapted to bereciprocated by a traverse-bar, a traverse-bar, a tubular sleeve adaptedto rotate upon said shaft, two tensioncaps adapted both to rotate and tomove endwise with respect to the central shaft, and means for bothretaining the tension-faces of the caps in contact and for permittingthe endwise movement of said caps apart, the one from the other,substantially as described.

3. In combination with a. tixed central shaft, two barrels rigidlyconnected therewith, a brake pivoted to the barrels and connectedtherewith by means of spiral band or other springs fastened to thebarrels on the one hand and to the brake ou the other, substantially asdescribed.

'4. The combination of the shaft, tensioncaps, cap-springs, brake, andbrake-springs, substantially as set forth.

5. In combination, the tubular sleeve, tension-caps, spring-cups, andcap-springs, as and for the purpose specified.

In testimony whereof I have hereunto signed my name this 18th day ofMay, A. D. 1882.

RICHARD WHARTON.

In presence of- J. BoNsALL TAYLOR, J oHN JOLLEY, J r.

